Special Containment Procedures: Currently, Junior Researcher Shepherd is kept in a standard humanoid containment chamber at Site-25. An area with a radius of five meters around Junior Researcher Shepherd is to be monitored at all times. When SCP-4091-1 manifests, it is to be intercepted by Foundation security personnel and kept in containment until demanifestation.

Description: SCP-4091 is a phenomenon involving the spontaneous manifestation of a single Canis lupus familiaris1, designated SCP-4091-1, within a five meter radius of Junior Researcher Shepherd. The time between SCP-4091 occurrences varies greatly, with the longest recorded time being three months, and the shortest recorded time being one hour.

SCP-4091-1 is sapient and capable of speech. Upon manifestation, SCP-4091-1 will attempt to locate and converse with Junior Researcher Shepherd. SCP-4091-1 will demanifest following the conclusion of this conversation, or if it is unable to locate Junior Researcher Shepherd within 30 minutes of manifestation.

Addendum: Recorded conversation between Junior Researcher Shepherd and SCP-4091-1.